Which minerals have been proved to be insufficient? We cannot infer from the article that ______.

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问题 Which minerals have been proved to be insufficient?
We cannot infer from the article that ______.

选项 A、there are abundant mineral reserves in the mountains
B、China’s mineral deposits are evenly scattered
C、China is rich in non-metal deposits
D、Research and exploration in the eastern and western parts of China have to be intensified

答案B

解析
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